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<h1>Dummies <img src="images/dummies1.jpg"></h1>


<p>A dummy object is the simplest <a href="objects.htm">object</a> available: it is a point with orientation, and it can be seen as a reference frame. Used alone, they are not that useful, however when used in conjunction with other objects or <a href="calculationModules.htm">calculation modules</a>, they can be of crucial importance; dummies are multipurpose or helper objects. Following figure shows a dummy:<br>
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<p align=center><img src="images/dummies2.jpg"></p>
<p class=imageLabel>[Dummy]</p>
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<p>Dummies are <a href="collidableObjects.htm">collidable</a>, <a href="measurableObjects.htm">measurable</a> and <a href="detectableObjects.htm">detectable objects</a>. This means that dummies:<br>
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<li>can be used in <a href="collisionDetection.htm">collision detections</a> with other collidable objects that are volume based, such as <a href="octrees.htm">OC trees</a>.</li>
<li>can be used in <a href="distanceCalculation.htm">minimum distance calculations</a> with other measurable objects. </li>
<li>can be detected by <a href="proximitySensors.htm">proximity sensors</a>.
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<p>By default, the collidable, measurable and detectable property of a dummy is turned off (see <a href="commonPropertiesDialog.htm">object common properties</a>).<br>
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<p>Dummies can be added to the <a href="scenes.htm">scene</a> with [Menu bar --&gt; Add --&gt; Dummy], or created from a <a href="shapes.htm">shape object</a> in the <a href="vertexEditMode.htm">vertex edit mode</a>.<br>
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<br>
<h3 class=recommendedTopics>Recommended topics</h3>

<li><a href="apiFunctionListCategory.htm#dummyObject">Related API functions</a></li>
<li><a href="dummiesDescription.htm">Dummy functions</a></li>
<li><a href="dummyPropertiesDialog.htm">Dummy properties</a></li>

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